20921361 is an odd 8-digits composite number following 20921360
and preceding 20921362 . In scientific notation, it is written as 2.0921361 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13947572 positive integers (up to 20921361) that are relatively prime to 20921361.
20921361 has 4 divisors, whose sum is 27895152
The reverse of 20921361 is 16312902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million nine hundred twenty-one thousand three hundred sixty-one
Scientific notation
2.0921361 × 10^7
Engineering notation
2.0921361 × 10^6
Prime Factorization
3 × 6973787
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921361
Product of the distinct prime numbers
The prime factorization of 20921361 is 3 × 6973787.
Since it has a total of 2 prime factors.
2 , 1 , 17 , 14 , 195 , 716 , 771 , 8057 , 50061 , 13058 , 871642 , 141511 , 1858777 , 7452305 , 68095594 , 60486203 , 585410565 , 834408650 , 814423423 , 4951207103
n×2
41842722
n×3
62764083
n×4
83685444
n×5
104606805
n÷2
10460680.5
n÷3
6973787
n÷3
5230340.25
n÷5
4184272.2
n2
437703346092321
n3
9.1573497145054E+21
n4
1.9158421918041E+29
n5
4.0082026113766E+36
2 √n
4573.9874289289
3 √n
275.54760744818
4 √n
67.631260737391
5 √n
29.11507992638
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921360
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921361 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921361) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011110000010001
3
Ternary
1110100220201020
4
Quaternary
1033303300101
5
Quinary
20323440421
6
Senary
2024230053
8
Octal
117636021
10
Decimal
20921361
12
Duodecimal
700b329
16
Hexadecimal
13f3c11
20
Vigesimal
6af381
36
Base36
cgf0x
md5
3bbc5dd5c0440e5cfb57d94fc7d30fa1
sha1
cf31835bbd53280ed5eacdd43abdc4fc00d2a00d
sha256
8ce483d3972e1d742567165e1e31fcda658b8804661f66ca68ce9f92d36dcb15
sha512
0eb10c87b8f97c93b48acee4cdd277ec8e3d49aec16c4782e3022043972266eb600cdbaac03f4f9f0c5c7fdb1620ed1274d922ed1348ebbd9f1dcaedb8483c6d
ripemd-160
97f4f0ad85b2c8a374e18ac6537378789b91348d
Diameter
41842722
Circumference
131452788.0414
Area
1.3750856165353E+15
Volume
3.8358216785924E+22
Surface area
5.5003424661412E+15
Circumference
131452788.0414
Perimeter
83685444
Area
437703346092321
Diagonal
29587272.469504
Surface area
2626220076553926
Volume
9.1573497145054E+21
Space diagonal
36236860.21549
Perimeter
62764083
Area
1.895311085187E+14
Altitude
18118430.107745
Surface area
1.895311085187E+14
Volume
1.0792040134706E+21
Height
9862424.1565012